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Surfactant-assisted synthesis of hybrid lithium iron phosphate nanoparticles for enhancing electrochemical performance
- Source :
- Journal of Solid State Chemistry. 197:53-59
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- Hybrid nanoparticles of LiFePO4 with carbon and lithium phosphates were synthesized through organic–inorganic co-assembly procedure using a triblock copolymer (F108 or P123). We found that the triblock copolymers play a critical role in controlling size of hybrid particle and the degree of crystallinity of the inorganic nanostructures. The hybrid using P-123 had more graphitic carbon which resulted in fast electron mobility. Also, magic angle spinning nuclear magnetic resonance (MAS-NMR) revealed that the crystallinity of the hybrid using P123 is higher than that using F108 which is not measurable in X-ray diffraction. Electrochemical performance of the hybrid using P123 as a cathode material in Li-ion batteries showed superior rate capability at 20 C of charging rate and 2 C of discharging rate without capacity loss, in which discharge capacity was 102 mAh/g.
- Subjects :
- Materials science
Lithium iron phosphate
Inorganic chemistry
chemistry.chemical_element
Nanoparticle
Condensed Matter Physics
Electrochemistry
Electronic, Optical and Magnetic Materials
Inorganic Chemistry
chemistry.chemical_compound
Crystallinity
chemistry
Materials Chemistry
Ceramics and Composites
Magic angle spinning
Lithium
Graphite
Physical and Theoretical Chemistry
Carbon
Subjects
Details
- ISSN :
- 00224596
- Volume :
- 197
- Database :
- OpenAIRE
- Journal :
- Journal of Solid State Chemistry
- Accession number :
- edsair.doi...........2cc3bc038252f88e410599a500cdeece